Single pipe radiator

Czakky82

Howdy, I’ve got an old Moline two pipe system that has a retrofit single pipe radiator added on at some point. Once I got my system running correctly (Thanks to Dan’s book!) the retrofit single pipe rad water hammers horribly and has been valved off ever since. It has a new working vent, etc.

Is there anyway to get this rad working on this system? Bigger vent?

Thanks

Bill

Long Beach Ed

You have to consider how the condensate is being handled from the single pipe radiator. Usually a water loop or a trap could be used. You can't just dump the condensate back in the steam line as it is properly not sized for that.

Send a diagram of how this radiator was added. And… at what pressure is the boiler operating?

Czakky82

I’ll work on a diagram. As far as pressure goes. I have a large 0-15psi gauge on the header. It never registers pressure. The other radiators heat up quite fast, no complaints there.

Jamie Hall

What @Long Beach Ed said. Also check the pitch of all the piping from the main to the radiator.

Intplm.

@Czakky82 While your doing your homework. Why not post some pictures of the rad and piping to get a better look?